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2 years ago

What is the value of x?

Mathematics

2 answers:

sashaice [31]2 years ago

8 0

Answer:

Step-by-step explanation:

72+3x=180(being sum of straight angle)

3x=180_72

3x=108

x=108÷3

x=36

Charra [1.4K]2 years ago

5 0

The value of x= 36°

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3 years ago

3x-32=-7×+28. what does x =

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2 years ago

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Simplify the expression -4^2(3x - 7)

maxonik [38]

Answer:

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Step-by-step explanation:

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2 years ago

Which are the solutions of x2 = –7x – 8?

vovangra [49]

Answer:

The solutions are:

$x_1=\frac{-7+\sqrt{17}}{2}$ $x_2=\frac{-7-\sqrt{17}}{2}$

Step-by-step explanation:

We have the following quadratic equation

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We can rewrite the equation as follows

$x^2+7x + 8=0$

Now we use the quadratic formula to solve the equation

For an equation of the form $ax ^ 2 + bx + c = 0$ the quadratic formula is:

$x=\frac{-b\±\sqrt{b^2-4ac}}{2a}$

In this case:

$a=1,\ b=7,\ c=8$

Then:

$x=\frac{-7\±\sqrt{7^2-4(1)(8)}}{2(1)}$

$x=\frac{-7\±\sqrt{49-32}}{2}$

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$x_1=\frac{-7+\sqrt{17}}{2}$

$x_2=\frac{-7-\sqrt{17}}{2}$

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3 years ago

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DanielleElmas [232]

Answer:

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Step-by-step explanation:

Divide the first number by the second like 145 divided by 18.

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2 years ago

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